Ardsley Advisory Partners’s Zscaler ZS Stock Holding History

Ardsley Advisory Partners’s Portfolio ZS Stock Details ZS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-16,000	Closed	-$5.02M	–	205
2025 Q2	$5.02M	Buy	+16,000	New	+$3.99M	0.66%	48
2025 Q1	–	Sell	-10,300	Closed	-$1.86M	–	214
2024 Q4	$1.86M	Buy	+10,300	New	+$1.99M	0.29%	92
2024 Q3	–	Sell	-25,200	Closed	-$4.84M	–	191
2024 Q2	$4.84M	Buy	+25,200	New	+$4.48M	0.71%	49
2023 Q4	–	Sell	-5,000	Closed	-$778K	–	180
2023 Q3	$778K	Buy	5,000 +100	+2%	+$15K	0.17%	91
2023 Q2	$717K	Buy	+4,900	New	+$598K	0.12%	98
2022 Q4	–	Sell	-10,600	Closed	-$1.74M	–	160
2022 Q3	$1.74M	Buy	+10,600	New	+$1.73M	0.39%	53
2022 Q1	–	Sell	-5,000	Closed	-$1.61M	–	164
2021 Q4	$1.61M	Buy	5,000 +4,000	+400%	+$1.26M	0.31%	55
2021 Q3	$262K	Buy	+1,000	New	+$251K	0.04%	116
2021 Q2	–	Sell	-3,500	Closed	-$601K	–	172
2021 Q1	$601K	Buy	+3,500	New	+$695K	0.07%	95
2020 Q2	–	Sell	-7,000	Closed	-$426K	–	168
2020 Q1	$426K	Buy	+7,000	New	+$385K	0.17%	65
2019 Q1	–	Sell	-12,000	Closed	-$471K	–	150
2018 Q4	$471K	Buy	+12,000	New	+$453K	0.12%	65

Other funds holding ZS

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Ardsley Advisory Partners's ZS Position: Q3 2025 in Review

Ardsley Advisory Partners sold out of Zscaler (ZS) in Q3 2025, closing a stake of 16,000 shares — an estimated $5.02M sold.

Ardsley Advisory Partners first reported a position in ZS in Q4 2018 and held it in 11 quarters. The position peaked at $5.02M in Q2 2025. 909 funds tracked by Wall St. Rank hold ZS as of Q3 2025.

Ardsley Advisory Partners reported no remaining Zscaler position as of Q3 2025 after selling out during the quarter.
Ardsley Advisory Partners sold 16,000 Zscaler shares in Q3 2025, an estimated $5.02M.
Ardsley Advisory Partners first reported a position in Zscaler in Q4 2018 and held it in 11 quarters.
Ardsley Advisory Partners's Zscaler position peaked at $5.02M in Q2 2025.
909 funds tracked by Wall St. Rank held Zscaler as of Q3 2025.

Based on Ardsley Advisory Partners's 13F filing for Q3 2025, filed 14 Nov 2025.